CN202614133U - Detection device - Google Patents

Detection device Download PDF

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Publication number
CN202614133U
CN202614133U CN 201220232253 CN201220232253U CN202614133U CN 202614133 U CN202614133 U CN 202614133U CN 201220232253 CN201220232253 CN 201220232253 CN 201220232253 U CN201220232253 U CN 201220232253U CN 202614133 U CN202614133 U CN 202614133U
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CN
China
Prior art keywords
support
dial gauge
hole
pick
gauge
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Active
Application number
CN 201220232253
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Chinese (zh)
Inventor
陈尧杰
邹钢
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Chongqing Cummins Engine Co Ltd
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Chongqing Cummins Engine Co Ltd
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Priority to CN 201220232253 priority Critical patent/CN202614133U/en
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Abstract

The utility model provides a detection device which includes a workbench and a fixing device used for fixing a connecting rod. The detection device also includes an indicating gauge and a support. The support is arranged on the workbench and can pass through a main shaft hole and a piston pin hole arranged in the connecting rod. The indicating gauge is arranged on the support, and a measuring head of the indicating gauge rotates relative to inner walls of the main shaft hole and the piston pin hole on the basis of the axis of the support. The detection device also includes a pushing gauge which can detect any face and is also provided with an indicating gauge and a measuring head. Through pushing a gauge base on a reference plane, the pushing gauge can detect the parallelism and the perpendicularity of a face. The detection device can measure the roundness errors and the perpendicularity errors of the main shaft hole and the piston pin hole in the connecting rod, the end face parallelism, the joint face parallelism and perpendicularity through directly rotating a gauge rod or moving the gauge base, so the detection time is obviously reduced and the detection efficiency is improved.

Description

A kind of pick-up unit
Technical field
The utility model relates to product detection technique field, more particularly, relates to a kind of pick-up unit.
Background technology
Three-coordinates measuring machine is called for short CMM (Coordinate Measuring Machining); Be meant in a hexahedral spatial dimension; The instrument of measurement capabilities such as geometric configuration, length and circumference calibration be can show, three coordinate measuring machine or three-dimensional amount bed are called again.Guiding mechanism is arranged on its three orthogonal directions, survey elongate elements, digital display device; Have one can place work piece worktable; Detection head can move on the measured point with manual or maneuver mode trippingly, is shown the coordinate figure of measured point by reading device and digital display device.
The part of in many industrial circles especially mechanical field, producing will be used with its supporting checkout equipment it is carried out relevant detection.At present, the checkout equipment that when the connecting rod in the engine is carried out coherent detection, adopts mainly comprises three-coordinates measuring machine, also has the thimble that matches and use with three-coordinates measuring machine.On the end face of the two sides of connecting rod and piston abutting end and itself and bent axle abutting end, all offer taper hole; Thimble through matching with each taper hole is fixed on connecting rod on the worktable; Wherein be opened in the connecting rod end face on first thimble that cooperates of taper hole only apply pretightning force; When applying pretightning force, also have the effect of location with second thimble in two thimbles that taper hole on being opened in the connecting rod two sides cooperates, the 3rd thimble adopts the mode of hand pretension that connecting rod is fixed on the worktable.After fixing, adopt by connecting rod three-coordinates measuring machine to its detection of being correlated with again; As when detecting the internal diameter of the spindle hole offered on connecting rod and the bent axle abutting end and piston pin hole; Touching three points on survey spindle hole and the piston pin hole inwall on the cross section perpendicular to spindle hole and piston pin hole axis, then just can calculate the internal diameter and the central coordinate of circle of spindle hole and piston pin hole according to this coordinate figure of 3; In this cross section, touch and survey more point, then can calculate the round deviation from circular from this cross section according to least square method or minimal condition method; On spindle hole and piston pin hole end face, touch and survey 3 points, then can calculate axially bored line position error of end face or the like.
Though the checkout equipment that adopts at present can carry out relevant detection with piston pin hole to spindle hole; But its three-coordinates measuring machine that adopts need be adjusted the position relation of three detection heads and test point when carrying out coherent detection; Whenever change the position relation that test point will be adjusted one-time detection head and test point when especially a plurality of test points being detected; And three-coordinates measuring machine finally obtains is that the coordinate of test point needs to carry out correlation computations according to coordinate and just can obtain desirable value; Position between so each adjustment detection head and the test point concerns and has all spent long time according to the coordinate Calculation desirable value that detection efficiency is obviously very low.
In sum, how a kind of detection system being provided, reducing detection time when spindle hole and piston pin hole are carried out coherent detection and then improve detection efficiency, is present those skilled in the art's problem demanding prompt solution.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of detection system, reduces detection time when spindle hole and piston pin hole are carried out coherent detection and then improves accuracy of detection.
For realizing above-mentioned purpose, the utility model provides following technical scheme:
A kind of pick-up unit comprises worktable and the stationary installation that is used for fixing connecting rod, and said pick-up unit also comprises dial gauge and support, and wherein, said support is arranged on the said worktable, and can pass spindle hole and piston pin hole on the said connecting rod; Said dial gauge is arranged on the said support, and the gauge head of said dial gauge is that benchmark can rotate relative to the inwall of said spindle hole and piston pin hole and can move along the axis direction of said support with the axis of said support.
Preferably, said support is dismountable is fixed on the said worktable.
Preferably, said support comprises pivoted frame and following back shaft, and said time back shaft is dismountable is fixed on the said worktable; The said pivoted frame of going up is installed in rotation on the said back shaft down, and said dial gauge is installed in said going up on the pivoted frame.
Preferably, the said pivoted frame of going up comprises clamping part and rotation axis, and said clamping part is fixed on an end of said rotation axis, the other end of said rotation axis be arranged on the said time rotating hole on the back shaft and match.
Preferably, also be provided with chute on the said rotation axis, dismountable register pin that matches with chute that is provided with on said down back shaft and the position that said rotation axis matches.
Preferably, said dial gauge is dismountable is arranged on the said support.
Preferably; When the axis of said dial gauge and the axis normal of said support; The gauge head place of said dial gauge also is provided with amplifier; This amplifier comprises that length bar and middle part are hinged on the spring lever on the said support, and said length bar is fixed on an end of said spring lever and can contacts with said spindle hole and piston pin hole inwall, and the other end of said spring lever matches with said dial gauge.
Preferably, said spring lever is provided with spring near the position of the probe of said dial gauge, and an end of said spring links to each other with said spring lever, and the other end and said support fix.
Preferably, said support is provided with the through hole of vertical said support axis, and said dial gauge is arranged in this through hole, and by register pin said dial gauge is carried out axial location.
Preferably, also comprise end face calibrated bolck, side calibrated bolck and the joint face calibrated bolck that is fixed on the said worktable.
The pick-up unit that the utility model provides; Comprise worktable and the stationary installation that is used for fixing connecting rod, said pick-up unit also comprises dial gauge and support, wherein; Said support is arranged on the said worktable, and can pass spindle hole and piston pin hole on the said connecting rod; Said dial gauge is arranged on the said support, and the gauge head of said dial gauge is that benchmark rotates relative to the inwall of said spindle hole and piston pin hole with the axis of said support.
When using above-mentioned detection device, at first, through stationary installation connecting rod is fixed on the worktable, wherein, support passes the spindle hole and the piston pin hole of connecting rod; Secondly, the position of adjustment dial gauge and spindle hole and piston pin hole relation makes the probe of dial gauge contact with the inwall of said spindle hole and piston pin hole; Then, the axis of said dial gauge with support rotated a circle, can directly obtain the deviation from circular from testing result according to the numerical value that changes on the said dial gauge; Said dial gauge moved according to the numerical value that changes on said first dial gauge along the axis direction of said support can directly obtain error of perpendicularity testing result.
Because; Adopt pick-up unit disclosed in the utility model can directly pass through stem bar or mobile gauge stand; Record spindle hole and the piston pin hole of connecting rod deviation from circular from and the error of perpendicularity, faces parallel, the faying face depth of parallelism and verticality, need not look like the three-coordinates measuring machine that uses at present; Can only detect the fixed position of hole wall or face, can not the people be to avoid undressed part hole wall or the face that goes out, and detection efficiency be very low; Run into when needing batch detection just not competently, so obviously reduced detection time and then improved detection efficiency.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The thimble structure synoptic diagram that Fig. 1 provides for the utility model embodiment;
A kind of pick-up unit structural representation that Fig. 2 provides for the utility model embodiment;
The calibrated bolck structural representation that Fig. 3 provides for the utility model embodiment;
The another kind of pick-up unit structural representation that Fig. 4 provides for the utility model embodiment.
Wherein, among Fig. 1-Fig. 4:
First thimble 1, second thimble 2, the 3rd thimble 3, connecting rod 4, spindle hole and piston pin hole 5, first dial gauge 6, support 7, end face calibrated bolck 8, side calibrated bolck 9, joint face calibrated bolck 10, length bar 11, spring lever 12.
Embodiment
The utility model embodiment provides a kind of pick-up unit, reduces detection time and then improves detection efficiency when the spindle hole of connecting rod and piston pin hole are carried out coherent detection.
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is a part of embodiment of the utility model, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills belong to the utility model protection domain not making all other embodiment that obtained under the creative work prerequisite.
A kind of pick-up unit of the detection that the utility model provides; Comprise worktable and the stationary installation that is used for fixing connecting rod 4, pick-up unit also comprises dial gauge 6 and support 7, wherein; Support 7 is arranged on the worktable, and can pass spindle hole and piston pin hole 5 on the connecting rod 4; Dial gauge 6 is arranged on the support 7, and the gauge head of dial gauge 6 is that benchmark rotates and can move along the axis direction of support 7 relative to the inwall of spindle hole and piston pin hole 5 with the axis of support 7.Extremely shown in Figure 4 like Fig. 1.
When using above-mentioned detection device, at first, through stationary installation connecting rod 4 is fixed on the worktable, wherein, support passes the spindle hole and the piston pin hole 5 of connecting rod 4; Secondly, the position of adjustment dial gauge and spindle hole and piston pin hole 5 relation makes the probe of dial gauge contact with the inwall of spindle hole with piston pin hole 5; Then, be that the center rotates a circle with dial gauge with the axis of support, can directly obtain the deviation from circular from testing result according to the numerical value that changes on the dial gauge; Dial gauge moved according to the numerical value that changes on first dial gauge along the axis direction of support can directly obtain error of perpendicularity testing result.
Because; Adopt pick-up unit disclosed in the utility model can directly pass through stem bar or mobile gauge stand; Record spindle hole and the piston pin hole of connecting rod deviation from circular from and the error of perpendicularity, faces parallel, the faying face depth of parallelism and verticality, need not look like the three-coordinates measuring machine that uses at present; Can only detect the fixed position of hole wall or face, can not the people be to avoid undressed part hole wall or the face that goes out, and detection efficiency be very low; Run into when needing batch detection just not competently, so obviously reduced detection time and then improved detection efficiency.
Above-mentioned support can directly be fixed on the worktable, when stationary links 4, at first with the hole alignment bracket of connecting rod 4, adjust the position of connecting rod 4 and support after, through stationary installation connecting rod 4 is fixed on the worktable.Support can also dismountablely be fixed on the worktable; In order to guarantee accuracy of detection, earlier support is fixed on the worktable usually, then spindle hole and piston pin hole 5 are passed support; After adjusting the position of connecting rod 4 and support, connecting rod 4 is fixed on the worktable through stationary installation.
When adopting the fixed connection mode, support is designed to the detachable structure, and wherein a part is used for fixing dial gauge, and another part rotates with respect to a part before and is used for fixing with worktable.Particularly, this support 7 comprises pivoted frame and following back shaft, and following back shaft is dismountable to be fixed on the worktable; Last pivoted frame is installed in rotation on down on the back shaft, and dial gauge 6 is on last pivoted frame.
Last pivoted frame can be sleeved on down on the back shaft, and when needs were measured the deviation from circular from of spindle hole and piston pin hole 5, pivoted frame got final product in the rotation, when needs are measured the verticality of spindle hole and piston pin hole 5, moves up and down pivoted frame and gets final product; Last pivoted frame also can be inserted into down on the back shaft, and particularly, last pivoted frame comprises clamping part and rotation axis, and clamping part is fixed on an end of rotation axis, and the other end of rotation axis matches with rotating hole on being arranged on down back shaft.
When measuring the verticality of spindle hole and piston pin hole 5; In order to prevent that dial gauge from rotating relative to spindle hole and piston pin hole 5; Also can be provided with chute by rotation axis, dismountable register pin that matches with chute that is provided with on following back shaft and the position that rotation axis matches.Last pivoted frame is when the support axis moves, and register pin is arranged on predeterminated position and matches with chute on the rotation axis, making under the effect of register pin and chute that pivoted frame can only descend back shaft to slide up and down relatively, and can not be rotated motion.
In addition, in order further to optimize such scheme, following back shaft is provided with a plurality of through holes that are used for the installing and locating pin; Perhaps rotation axis is provided with many and is used for the chute that matches with register pin.When needs detect the verticality of a certain longitudinal section, only need dial gauge is rotated to predeterminated position, then register pin is arranged in the through hole, matching with specific chute gets final product.
Stationary installation in said fixing device and the existing pick-up unit is close, comprises first thimble 1, second thimble 2 and the 3rd thimble 3 that are arranged on the worktable.First thimble 1, second thimble 2 and the 3rd thimble 3 all are fixed on predeterminated position, after waiting to choose the position of connecting rod 4, and through regulating the extension elongation of first thimble 1, second thimble 2 and the 3rd thimble 3, the position of adjustment connecting rod 4 relative supports 7, as shown in figs. 1 and 3.
Installing connecting rods 4 for ease, above-mentioned dial gauge 6 dismountable being arranged on the support 7, and dismountable installation is convenient for changing dial gauge, and the zeroing of dial gauge.The utility model embodiment introduces a kind of mounting means of dial gauge, and support 7 is provided with the through hole of vertical support frame 7 axis, and dial gauge 6 is arranged in this through hole, and by register pin said dial gauge 6 is carried out axial location.
Because the axis of dial gauge 6 can be arranged to the axis normal with support 7, and is as shown in Figure 4, the axis of dial gauge 6 also can with the parallel axes of support 7, as shown in Figure 2.When the axis of dial gauge 6 is arranged to the axis normal with support 7; The gauge head place of dial gauge 6 also is provided with amplifier; This amplifier comprises that length bar 11 and middle part are hinged on the spring lever 12 on the support 7; Length bar 11 is fixed on an end of spring lever 12 and can contacts with spindle hole and piston pin hole 5 inwalls, and the other end of spring lever 12 matches with dial gauge 6.The jumping degree that utilizes lever principle will measure spindle hole and piston pin hole 5 amplifies.
Precision in order to guarantee to measure, spring lever 12 is provided with spring near the position of the probe of dial gauge 6, and an end of spring links to each other with spring lever 12, and the other end and support 7 fix.The probe that under the effect of spring, can guarantee dial gauge 6 better contacts with spring lever 12.
Also comprise the end face calibrated bolck 8, side calibrated bolck 9 and the joint face calibrated bolck 10 that are fixed on the said worktable.End face calibrated bolck 8 is fixedly mounted on above-mentioned connecting rod 44 avris and itself and above-mentioned connecting rod 44 in same workplace; The gauge head of dial gauge is contacted and mixes up benchmark numerical value with the workplace of end face calibrated bolck 8; Move second dial gauge again its gauge head is contacted with the end face of piston abutting end with above-mentioned connecting rod 44, just can learn according to the comparison of the error range of resulting numerical difference between and regulation on second dial gauge whether the flatness of above-mentioned connecting rod 44 end faces meets the requirements.
Side calibrated bolck 9 is fixedly mounted on the avris of above-mentioned spindle hole and piston pin hole 55 outer walls; The gauge head of the 3rd dial gauge contacts and mixes up benchmark numerical value with the workplace of side calibrated bolck 9; Gauge head with the 3rd dial gauge contacts with the outer wall of above-mentioned spindle hole with piston pin hole 55 again, just can learn according to the comparison of the error range of resulting numerical difference between and regulation on the 3rd dial gauge whether the flatness of the outer wall of above-mentioned spindle hole and piston pin hole 55 meets the requirements.The 3rd dial gauge just can be learnt along moving axially according to the comparison of the error range of resulting numerical difference between of the 3rd dial gauge and regulation of above-mentioned spindle hole and piston pin hole 55 whether the verticality of the outer wall of above-mentioned spindle hole and piston pin hole 55 meets the requirements.
Joint face calibrated bolck 10 time guarantees that in fixed installation reference field that the joint face of its workplace and above-mentioned connecting rod 44 stipulates is in same plane; The gauge head of the 4th dial gauge contacts and mixes up benchmark numerical value with the workplace of joint face calibrated bolck 10; Gauge head with the 4th dial gauge moves on the joint face of above-mentioned connecting rod 44 again; Just can learn according to the comparison of the error range of resulting numerical difference between and regulation on the 4th dial gauge whether the flatness of the joint face of above-mentioned connecting rod 44 meets the requirements, whether the depth of parallelism that just can learn two joint faces according to the comparison between the flatness of two joint faces of above-mentioned connecting rod 4 is in specialized range.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation of spirit that does not break away from the utility model or scope in other embodiments among this paper.Therefore, the utility model will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.

Claims (10)

1. pick-up unit; Comprise worktable and the stationary installation that is used for fixing connecting rod; It is characterized in that said pick-up unit also comprises dial gauge (6) and support (7), wherein; Said support (7) is arranged on the said worktable, and can pass spindle hole and piston pin hole (5) on the said connecting rod; Said dial gauge (6) is arranged on the said support (7), and the gauge head of said dial gauge (6) is that benchmark can rotate relative to the inwall of said spindle hole and piston pin hole (5) and can move along the axis direction of said support (7) with the axis of said support (7).
2. pick-up unit as claimed in claim 1 is characterized in that, said support (7) is dismountable to be fixed on the said worktable.
3. pick-up unit as claimed in claim 2 is characterized in that, said support (7) comprises pivoted frame and following back shaft, and said time back shaft is dismountable is fixed on the said worktable; The said pivoted frame of going up is installed in rotation on the said back shaft down, and said dial gauge (6) is installed in said going up on the pivoted frame.
4. pick-up unit as claimed in claim 3 is characterized in that, the said pivoted frame of going up comprises clamping part and rotation axis, and said clamping part is fixed on an end of said rotation axis, the other end of said rotation axis be arranged on the said time rotating hole on the back shaft and match.
5. pick-up unit as claimed in claim 4 is characterized in that, also is provided with chute on the said rotation axis, dismountable register pin that matches with chute that is provided with on said down back shaft and the position that said rotation axis matches.
6. pick-up unit as claimed in claim 5 is characterized in that, said dial gauge (6) is dismountable to be arranged on the said support (7).
7. pick-up unit as claimed in claim 1; It is characterized in that; When the axis of said dial gauge (6) and the axis normal of said support; The gauge head place of said dial gauge also is provided with amplifier; This amplifier comprises that length bar (11) and middle part are hinged on the spring lever (12) on the said support (7), and said length bar (11) is fixed on an end of said spring lever (12) and can contacts with said spindle hole and piston pin hole (5) inwall, and the other end of said spring lever (12) matches with said dial gauge (6).
8. pick-up unit according to claim 7 is characterized in that, said spring lever (12) is provided with spring near the position of the probe of said dial gauge, and an end of said spring links to each other with said spring lever, and the other end and said support fix.
9. pick-up unit as claimed in claim 8 is characterized in that, said support (7) is provided with the through hole of vertical said support (7) axis, and said dial gauge (6) is arranged in this through hole, and by register pin said dial gauge (6) is carried out axial location.
10. according to any described pick-up unit among the claim 1-9, it is characterized in that, also comprise the end face calibrated bolck (8), side calibrated bolck (9) and the joint face calibrated bolck (10) that are fixed on the said worktable.
CN 201220232253 2012-05-22 2012-05-22 Detection device Active CN202614133U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220232253 CN202614133U (en) 2012-05-22 2012-05-22 Detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220232253 CN202614133U (en) 2012-05-22 2012-05-22 Detection device

Publications (1)

Publication Number Publication Date
CN202614133U true CN202614133U (en) 2012-12-19

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CN (1) CN202614133U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108663009A (en) * 2018-05-16 2018-10-16 大连大学 The even parallelism error measurement method of the assigned direction relative datum element axis of component of rod category
CN110514146A (en) * 2019-07-31 2019-11-29 江苏理工学院 A kind of cubing of medium-and-large-sized vertical bearing bore verticality and parallelism precision

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108663009A (en) * 2018-05-16 2018-10-16 大连大学 The even parallelism error measurement method of the assigned direction relative datum element axis of component of rod category
CN110514146A (en) * 2019-07-31 2019-11-29 江苏理工学院 A kind of cubing of medium-and-large-sized vertical bearing bore verticality and parallelism precision
CN110514146B (en) * 2019-07-31 2021-05-18 江苏理工学院 Gauge for detecting verticality and parallelism precision of middle-large vertical bearing seat hole

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